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Iditarod Geophysical Survey

The digital data below was produced from airborne geophysical surveys conducted in 2010 for the Iditarod survey area in the Innoko, Iditarod, and Ophir mining districts, Iditarod and Ophir quadrangles, western Alaska. Aeromagnetic and electromagnetic (EM) data were acquired by helicopter for about 852 sq miles. Fugro Airborne Survey's frequency-domain DIGHEM V system was used for the EM data. It includes (1) raw and processed linedata; (2) gridded, Google Earth, and Geotiff formats of the calculated linedata; (3) maps of the data; and (4) vector files of data contours and flight lines. A future publication will include the technical project report, interpretation map, and EM anomalies, as well as other files.

Available Data Metadata Overview
File Name Data File Format File Size Info
Download gpr2011-2_vectors Shapefile 87.7 M Read me
Download gpr2011-4_vectors Shapefile 64.3 M Read me
Download gpr2011-2_maps-HPGL2_1-5 Plot files 126.0 M Read me
Download gpr2011-2_maps-HPGL2_6-8 Plot files 136.0 M Read me
Download gpr2011-2_maps-HPGL2_9-13 Plot files 115.3 M Read me
Download gpr2011-4_maps_hpgl2 Plot files 63.8 M Read me
Download gpr2011-2_linedata-XYZ Linedata XYZ files 273.0 M Read me
Download gpr2011-2_linedata-GDB Linedata GDB files 262.1 M Read me
Download gpr2011-2_grids-GRD Gridded data Geosoft format 126.5 M Read me
Download gpr2011-2_grids-ERS Gridded data ER Mapper 126.5 M Read me
Download gpr2011-2_geotiffs-and-kmzs Georeferenced raster files 14.1 M Read me
Download gpr2011-4_geotiffs Georeferenced raster files 36.6 M Read me
Download gpr2011-2_maps-PDF Adobe PDF files 162.5 M Read me
Download gpr2011-4_maps_pdf Adobe PDF files 38.8 M Read me
Download gpr2011-4_project_report_em Adobe PDF files 6.5 M Read me
Download gpr2011-4_sm_profiles Adobe PDF files 296.9 M Read me

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